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| {{#Wiki_filter:Baldor Electric Company,,I ,I=,P. 0. Box 250, 4349 Avery Drive..................... | | {{#Wiki_filter:Baldor Electric Company |
| _Flowery Branch, GA 30542 USAA MEMBER OF THE ABB GROUP Tel 678.947.7350 January 20, 2015To: Document Control DeskUnited States Nuclear Regulatory Commission Washington, DC 20555 | | ,,I ,I=,P. 0. Box 250, 4349 Avery Drive |
| | ..................... _Flowery Branch, GA 30542 USA A MEMBER OF THE ABB GROUP Tel 678.947.7350 January 20, 2015 To: Document Control Desk United States Nuclear Regulatory Commission Washington, DC 20555 |
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| ==Dear Sir or Madam:== | | ==Dear Sir or Madam:== |
| In accordance with Title 10, Code of Federal Regulations, Part 21,Baldor Electric is making Written and Final Notification asrequired by 10CFR21.21 for event #50703.A. Name and address of the individual informing the NRC.James ThigpenQuality Assurance ManagerBaldor Electric/Gainesville Motor Plant4349 Avery DriveFlowery Branch, Georgia 30506B. Identification of Basic Component being Supplied. | | |
| AC MotorC. Name of firm supplying basic component. | | In accordance with Title 10, Code of Federal Regulations, Part 21, Baldor Electric is making Written and Final Notification as required by 10CFR21.21 for event #50703. |
| Baldor Electric/Gainesville Motor Plant4349 Avery DriveFlowery Branch, Georgia 30542D. Nature of the defect, deviation, or failure to comply. | | A. Name and address of the individual informing the NRC. |
| | James Thigpen Quality Assurance Manager Baldor Electric/Gainesville Motor Plant 4349 Avery Drive Flowery Branch, Georgia 30506 B. Identification of Basic Component being Supplied. |
| | AC Motor C. Name of firm supplying basic component. |
| | Baldor Electric/Gainesville Motor Plant 4349 Avery Drive Flowery Branch, Georgia 30542 D. Nature of the defect, deviation, or failure to comply. |
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| ==Subject:== | | ==Subject:== |
| | Nuclear Nonconformance Event Number 50703 This is a reportable 10CFR21 notification because we believe it is possible that the 9 identified lE motors shipped by Baldor Electric, contain a design where the buildup of tolerances between the shaft journal, bearing cap and bracket could potentially allow the bearing cap to cock in the bracket causing a 0.001" interference fit on one side of the cap in a worst case scenario. |
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| Nuclear Nonconformance Event Number 50703This is a reportable 10CFR21 notification because we believeit is possible that the 9 identified lE motors shipped byBaldor Electric, contain a design where the buildup oftolerances between the shaft journal, bearing cap and bracketcould potentially allow the bearing cap to cock in thebracket causing a 0.001" interference fit on one side of thecap in a worst case scenario.
| | ----..... Baldor Electric Company 9A LID O0 P. 0. Box 250, 4349 Avery Drive Flowery Branch, GA 30542 USA A MEMBER OF THE ABB GROUP Tel 678.947.7350 STEPS TAKEN TO PREVENT FUTURE OCCURRENCES A review was completed by design engineering to determine this design issue has only occurred for the Baldor Specification ID #'s associated with Howden Part Number 600287-28R, *of which Baldor has only shipped the 10 motors identified below of which 9 remain in the customers possession. Baldor has the remaining motor in our possession and it is being replaced with one using the revised design developed as our corrective action response. |
| ---- ..... Baldor Electric Company9A LID O0 P. 0. Box 250, 4349 Avery DriveFlowery Branch, GA 30542 USAA MEMBER OF THE ABB GROUP Tel 678.947.7350 STEPS TAKEN TO PREVENT FUTURE OCCURRENCES A review was completed by design engineering to determine this design issue has only occurred for the BaldorSpecification ID #'s associated with Howden Part Number600287-28R, | | Baldor has notified Howden North America Inc. Company's Quality Assurance of our findings. They have in turn contacted their customer, PPL Susquehanna, and determined all 9 motors in their possession have been in service for over 24 hours with no problems. |
| *of which Baldor has only shipped the 10 motorsidentified below of which 9 remain in the customers possession. | | The design of the shaft/bearing cap radial clearance has been increased to correct the potential safety issue. Motor Bill of materials for the effected Baldor designs have been revised to call for bearing cap part number 603295-74B on any future shipment. |
| Baldor has the remaining motor in our possession and it is being replaced with one using the revised designdeveloped as our corrective action response. | | CONCLUSION The one motor that failed during initial customer testing is in process of being repaired or replaced with the new designed bearing cap. |
| Baldor has notified Howden North America Inc. Company's Quality Assurance of our findings. | | The revision of the design for Spec. ID's B505968, B656588, B782464, B952117 and B1092454 has been implemented and verified to be correct. |
| They have in turncontacted their customer, PPL Susquehanna, and determined all9 motors in their possession have been in service for over 24hours with no problems. | | The end user PPL Susquehanna has confirmed to Howden North America Inc. that the remaining 9 motors have been in service for over 24 hours with no problems, and therefore do not require any alteration to the bearing cap in order to perform their intended use safely. |
| The design of the shaft/bearing cap radial clearance has beenincreased to correct the potential safety issue. Motor Billof materials for the effected Baldor designs have beenrevised to call for bearing cap part number 603295-74B on anyfuture shipment. | | D. The Discovery Date. |
| CONCLUSION The one motor that failed during initial customer testing isin process of being repaired or replaced with the newdesigned bearing cap.The revision of the design for Spec. ID's B505968, B656588,B782464, B952117 and B1092454 has been implemented andverified to be correct.The end user PPL Susquehanna has confirmed to Howden NorthAmerica Inc. that the remaining 9 motors have been in servicefor over 24 hours with no problems, and therefore do notrequire any alteration to the bearing cap in order to performtheir intended use safely.D. The Discovery Date.October 29, 2014. | | October 29, 2014. |
| A MEMBER OF THE ABB GROUPE. The Quantity and Location of Motors Affected.
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| Baldor Electric CompanyP. 0. Box 250, 4349 Avery DriveFlowery Branch, GA 30542 USATel 678.947.7350 PART/COMPONENT NUMBER:Customer Customer Motor Serial # End User / Location StatusName PO #Howden 39679 B505968-010 T1 PPL Susquehanna Contacted North 44617 B656588-010 T1 PPL Susquehanna Todd.Gunvalson@Ho America Inc. B656588-010 T1 PPL Susquehanna wden.com and48105 B782464-010 T1 PPL Susquehanna confirmed all 9 motorsB782464-010 T2 PPL Susquehanna have been running in012747 LIl 1 B952117-010 T1 PPL Susquehanna service for over 24B952117-010 T2 PPL Susquehanna hours with noB952117-010 T3 PPL Susquehanna problems. | | Baldor Electric Company P. 0. Box 250, 4349 Avery Drive Flowery Branch, GA 30542 USA A MEMBER OF THE ABB GROUP Tel 678.947.7350 E. The Quantity and Location of Motors Affected. |
| 022355 B1092454-010 T1 PPL Susquehanna B1092454-010 T2 Baldor Electric Motor will ship toHowden with newdesign, new serialnumberF. The Corrective Action which has been completed. | | PART/COMPONENT NUMBER: |
| | Customer Customer Motor Serial # End User / Location Status Name PO # |
| | Howden 39679 B505968-010 T1 PPL Susquehanna Contacted North 44617 B656588-010 T1 PPL Susquehanna Todd.Gunvalson@Ho America Inc. B656588-010 T1 PPL Susquehanna wden.com and 48105 B782464-010 T1 PPL Susquehanna confirmed all 9 motors B782464-010 T2 PPL Susquehanna have been running in 012747 LIl 1 B952117-010 T1 PPL Susquehanna service for over 24 B952117-010 T2 PPL Susquehanna hours with no B952117-010 T3 PPL Susquehanna problems. |
| | 022355 B1092454-010 T1 PPL Susquehanna B1092454-010 T2 Baldor Electric Motor will ship to Howden with new design, new serial number F. The Corrective Action which has been completed. |
| Baldor has notified Howden North America's Quality Assurance | | Baldor has notified Howden North America's Quality Assurance |
| .of our findings on the motor returned to Baldor for 10CFR21evaluation. | | .of our findings on the motor returned to Baldor for 10CFR21 evaluation. A review was completed by design engineering to determine this failure was due to a collection of events that occurred simultaneously, and if were to happen again, would result in failure within hours of the motor being powered. |
| A review was completed by design engineering todetermine this failure was due to a collection of events thatoccurred simultaneously, and if were to happen again, wouldresult in failure within hours of the motor being powered.Baldor's solution to this worst case scenario is to open theclearances of the shaft bore in the cap up from a 0.008"radial clearance by design, to the maximum 0.012" radialclearance for 1.5" fit length for UL XP standards. | | Baldor's solution to this worst case scenario is to open the clearances of the shaft bore in the cap up from a 0.008" radial clearance by design, to the maximum 0.012" radial clearance for 1.5" fit length for UL XP standards. This would eliminate any possibility of a rub while the cap is mounted in the cap journal of the bracket. All motors that have been in service for more than 24 hours do not require alteration of the bearing cap. Any others that have not been placed into service should have the opposite drive end bearing cap replaced to ensure this failure will not occur. The corrective action CAR-00451 Howden: Request for 10CFR21 Evaluation for bearing lockdown was completed and closed on 12/23/14. |
| This wouldeliminate any possibility of a rub while the cap is mounted inthe cap journal of the bracket. | | Baldor initiated corrective action per Baldor CAR-00451 on December 15, 2014 which was completed and received final approval by James Thigpen QA manager Baldor. Final verification of actions will be and verified for effectiveness by 3/23/2015. |
| All motors that have been inservice for more than 24 hours do not require alteration ofthe bearing cap. Any others that have not been placed intoservice should have the opposite drive end bearing capreplaced to ensure this failure will not occur. Thecorrective action CAR-00451 Howden: Request for 10CFR21Evaluation for bearing lockdown was completed and closed on12/23/14. | | |
| Baldor initiated corrective action per Baldor CAR-00451 onDecember 15, 2014 which was completed and received finalapproval by James Thigpen QA manager Baldor. Finalverification of actions will be and verified for effectiveness by 3/23/2015. | | Baldor Electric Company P. 0. Box 250, 4349 Avery Drive Flowery Branch, GA 30542 USA Tel 678.947.7350 A MEMBER OF THE ABB GROUP G. Other Information. |
| A MEMBER OF THE ABB GROUPBaldor Electric CompanyP. 0. Box 250, 4349 Avery DriveFlowery Branch, GA 30542 USATel 678.947.7350 G. Other Information.
| | All motors that have been in service for more than 24 hours do not require alteration of the bearing cap. Any others that have not been placed into service should have the opposite drive end bearing cap replaced with a newly designed cap (603295-74B) to ensure this failure could not occur. |
| All motors that have been in service for more than 24 hours do notrequire alteration of the bearing cap. Any others that have notbeen placed into service should have the opposite drive endbearing cap replaced with a newly designed cap (603295-74B) toensure this failure could not occur.Sincerely, mre~s Tge~nQuality Assurance | | Sincerely, mre~s Tge~n Quality Assurance Manager, Gainesville Motor Plant Baldor Electric Co.}} |
| : Manager, Gainesville Motor PlantBaldor Electric Co.}}
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Category:Deficiency Report (per 10CFR50.55e and Part 21)
MONTHYEARML23279A0612023-10-0505 October 2023 Paragon Energy Solutions LLC, Part 21 Final Report Re Potential Defect with Eaton Jd and Hjd Series Molded Case Circuit Breakers (Mccbs) ML23254A0242023-09-0606 September 2023 Paragon Energy Solutions LLC, Potential Defect with Eaton Jd and Hjd Series Molded Case Circuit Breakers (Mccbs) ML23094A1252023-03-31031 March 2023 Talen Part 21 Final Notification P21-03032023-FN R0 Re Defect Identified in Automatic Transfer Switch ML23094A1242023-03-31031 March 2023 EN 56387 Update - Paragon Energy Solutions Final Notification of Defect of Automatic Transfer Switch ML23065A1962023-03-0202 March 2023 EN 56387 Paragon - Part 21 Report Re Defect Identified in Automatic Transfer Switch Pn: NLI-ATS480A400X1 ML20073G4572020-03-0909 March 2020 Carrier Corporation - Final Report Notification of Defect Pursuant to 10 CFR Part 21 for 17FA999-1200-107 Oil Pump ML19347A4262019-12-10010 December 2019 General Atomics - Reportable Occurrence Under 10CFR21: Reported Failure in Analog High Range Radiation Monitor (RP-2C) ML19120A1062019-04-17017 April 2019 Interim Report of Potential 10 CFR Part 21, Eaton Size 1 and 2 A200 Series Starters/Contactors ML18087A0022018-03-21021 March 2018 Crane Nuclear, Inc. - Final Report for 10 CFR Part 21 Investigation Report Notification of Xomox Plug Valve High Torsional Stress in Stem ML18078A5362018-01-31031 January 2018 Crane Nuclear, Inc. - Interim Report for 10 CFR Part 21 Investigation Report Notification of Xomox Plug Valve High Torsional Stress in Stem (Update) ML17311A9092017-10-31031 October 2017 Interim Report for Part 21 Investigation Report Notification of Xomox Plug Valve High Torsional Stress in Stem ML17223A1982017-07-21021 July 2017 Part 21 Notification - Eaton/Cutler Hammer A200 Series Starter ML17206A0402017-07-14014 July 2017 Part 21 - Defective Safety Related Valves PLA-7613, Interim Report of a Deviation, Units 1 & 2 - (PLA-7613)2017-06-0909 June 2017 Interim Report of a Deviation, Units 1 & 2 - (PLA-7613) ML17179A3782017-06-0707 June 2017 TE Connectivity - Part 21 Transfer of Information TE-023 ML17081A4532017-03-20020 March 2017 Part 21 - Plastic Jar Dedication Sampling ML17026A4142017-01-20020 January 2017 C&D Technologies, Inc. - Part 21 - Plastic Jar Dedication Sampling ML16313A0622016-10-18018 October 2016 C&D Technologies, Inc. - 10 CFR Part 21 Evaluation Regarding Terminal Welding Failure in 3DCU-9 Batteries ML16321A4502016-08-31031 August 2016 Part 21 Notification - Flowserve Swing Check Valves ML16039A2692016-02-0303 February 2016 Nutherm International, Inc. - Potential Issue Regarding Incorrect Industrial Irradiation Dose, Per Cooper, Oconee, Fitzpatrick, Point Beach, Brunswick, and Susquehanna ML15034A5662015-01-23023 January 2015 Notification of Potential Part 21 for Event #50703 ML15030A0332015-01-20020 January 2015 Letter from James Thigpen Notification of Potential Part 21 Nuclear Nonconformance Event Number 50703 ML14337A0942014-11-24024 November 2014 Notification of Potential Part 21 - Lack of Proper Power Supply Indication ML14329A0632014-11-19019 November 2014 Notification of Potential Part 21 Re Lack of Proper Power Supply Indication ML14274A0522014-09-22022 September 2014 Final Report 10CFR Part 21 Evaluation Regarding Misaligned Separators in LCR-25 Standby Batteries, Revision 1 - Original Letter Did Not Include the List of Affected Utilities ML14204A7072014-07-23023 July 2014 Completed Evaluation of Part 21 Potentially Reportable Condition Notification: Unseating of Valve Spring on SSPV ML14210A0102014-07-23023 July 2014 Part 21 - Unseating of Valve Spring on Scram Solenoid Pilot Valve ML14204A7082014-07-23023 July 2014 Enclosure 2, Description of Closure Evaluation, Non-Proprietary Information - Class I (Public) ML14169A0302014-06-15015 June 2014 Update to Interim Report - 10CFR 21 Evaluation Regarding Potential Deficiencies in Seismic Qualifications for PV-62 ML14303A5262014-03-28028 March 2014 Interim Part 21 Report - Misaligned Separators in LCR-25 Standby Batteries ML13340A3822013-12-0505 December 2013 Part 21 Reportable Condition Notification: Failure of Relay Logic Card Modules in 2 Out of 4 Voters ML13165A3422013-06-12012 June 2013 60-Day Interim Report Involving an Evaluation of a Design Change to Magne-Blast Circuit Breakers ML13042A0962013-02-0808 February 2013 Completed Evaluation of Part 21 Potentially Reportable Condition Notification: Error in Main Steam Line High Flow Calculational Methodology ML13044A0752013-02-0808 February 2013 Part 21 - Completed Evaluation for Potential Error in Main Steam Line High Flow Calculational Methodology ML12352A1232012-12-13013 December 2012 60-Day Interim Report Involving an Evaluation of a Design Change to Magne-Blast Circuit Breakers ML12348A1362012-12-13013 December 2012 Part 21 60-Day Interim Report Notification: Adequacy of Design Change in Am Magne-Blast Circuit Breakers ML12347A3082012-12-12012 December 2012 Part 21 60-Day Interim Report Notification: Error in Main Steam Line High Flow Calculational Methodology ML12319A0122012-09-27027 September 2012 Error in Main Steam Line High Flow Calculational Methodology ML12163A1302012-06-0606 June 2012 Part 21 Report - Failure of CRD Collet Retainer Tube/Outer Tube Weld ML12158A4472012-06-0606 June 2012 Part 21 60-Day Interim Report Notification - Closufailure of CRD Collet Retainer Tube/Outer Tube Weld ML12040A2832012-02-0707 February 2012 Notification of Potential Part 21 - Failure to Include Seismic Input in Reactor Control Blade Customer Guidance ML12038A0282012-02-0202 February 2012 Failure of CRD Collet Retainer Tube/Outer Tube Weld ML12032A2402012-02-0101 February 2012 Notification of Potential Part 21 - 60-Day Interim Report Notification: Failure of CRD Collet Retainer Tube/Outer Tube Weld ML11340A1002011-12-0505 December 2011 Letter 10 CFR Part 21 Notification Report, CON2000 and RTD2100 Spring Clips ML11341A0602011-12-0505 December 2011 Notification of Potential Part 21 Involving Defective Spring Clips Used as Seismic Restraints on Two Scientific Modules ML11363A1882011-12-0202 December 2011 10CFR21 Reporting of Defects and Non-Compliance - Engine Systems, Inc. Report No. 10CFR21-0098, Rev. 3, Amot Thermostatic Valve Element P/N: 9760X ML11336A3692011-12-0101 December 2011 Notification of Potential Part 21 Interim Report on Thermostatic Valve Failure on Palo Verde EDG ML11228A0842011-08-12012 August 2011 Notification of Part 21 - Failure to Include Seismic Input in Reactor Control Blade Customer Guidance ML1122401422011-08-11011 August 2011 Part 21 60-Day Interim Report Notification: Failure to Include Seismic Input in Channel-Control Blade Interference Customer Guidance ML11115A0392011-04-14014 April 2011 Notice of Deviation Pursuant to 10 CFR 21, NPKC-7-21A(N) Splice Kit with Possible Compromised Jacket Seal 2023-09-06
[Table view] Category:Letter
MONTHYEARIR 05000387/20230042024-02-0707 February 2024 Integrated Inspection Report 05000387/2023004 and 05000388/2023004 PLA-8096, Response to Request for Additional Information Regarding Proposed Relief Request for the Fifth 10-Year Inservice Test Program Interval2024-01-0404 January 2024 Response to Request for Additional Information Regarding Proposed Relief Request for the Fifth 10-Year Inservice Test Program Interval PLA-8077, Emergency Plan Revision 67 (PLA-8077)2023-12-27027 December 2023 Emergency Plan Revision 67 (PLA-8077) IR 05000387/20230102023-12-11011 December 2023 Fire Protection Team Inspection Report 05000387/2023010 and 05000388/2023010 PLA-8089, Submittal of Revision to Inservice Testing Program Plan2023-12-0505 December 2023 Submittal of Revision to Inservice Testing Program Plan PLA-8084, Application to Revise Technical Specifications to Adopt TSTF-568, Revise Applicability of BWR TS 3.6.2.5 and TS 3.6.3.22023-11-29029 November 2023 Application to Revise Technical Specifications to Adopt TSTF-568, Revise Applicability of BWR TS 3.6.2.5 and TS 3.6.3.2 ML23345A0682023-11-28028 November 2023 Technical Specification Bases, Manual PLA-8091, Response to Request for Additional Information Regarding Proposed Relief Request for the Fifth 10-Year Inseervice Inspection Interval (PLA-8091)2023-11-0808 November 2023 Response to Request for Additional Information Regarding Proposed Relief Request for the Fifth 10-Year Inseervice Inspection Interval (PLA-8091) IR 05000387/20230032023-11-0303 November 2023 Integrated Inspection Report 05000387/2023003 and 05000388/2023003 PLA-8082, Proposed Amendment to Licenses NPF-14 and NPF-22: Application to Revise Technical Specifications to Adopt TSTF-563, Revise Instrument Testing Definitions to Incorporate the Surveillance Frequency Control Program2023-11-0202 November 2023 Proposed Amendment to Licenses NPF-14 and NPF-22: Application to Revise Technical Specifications to Adopt TSTF-563, Revise Instrument Testing Definitions to Incorporate the Surveillance Frequency Control Program ML23291A1132023-10-12012 October 2023 Submittal of Revision 71 to Updated Final Safety Analysis Report and Revision 25 to Fire Protection Review Report ML23279A0612023-10-0505 October 2023 Paragon Energy Solutions LLC, Part 21 Final Report Re Potential Defect with Eaton Jd and Hjd Series Molded Case Circuit Breakers (Mccbs) ML23277A0412023-10-0505 October 2023 Notification of Commercial Grade Dedication Inspection (05000387/2024011 and 05000388/2024011) and Request for Information IR 05000387/20233012023-09-20020 September 2023 Initial Operator Licensing Examination Report 05000387/2023301 and 05000388/2023301 ML23254A0242023-09-0606 September 2023 Paragon Energy Solutions LLC, Potential Defect with Eaton Jd and Hjd Series Molded Case Circuit Breakers (Mccbs) IR 05000387/20230052023-08-31031 August 2023 Updated Inspection Plan for Susquehanna Steam Electric Station, Units 1 and 2 (Report 05000387/2023005 and 05000388/2023005) ML23228A1952023-08-21021 August 2023 Summary of August 10, 2023, Public Observation Meeting Re. Proposed Alternative PLA-8080, Proposed Relief for Valve 251130 (PLA-8080)2023-08-14014 August 2023 Proposed Relief for Valve 251130 (PLA-8080) PLA-8074, Proposed Relief Request for the Fifth 10-Year Inservice Test Program Interval2023-08-0303 August 2023 Proposed Relief Request for the Fifth 10-Year Inservice Test Program Interval IR 05000387/20230022023-08-0101 August 2023 Integrated Inspection Report 05000387/2023002 and 05000388/2023002 ML23195A1852023-07-27027 July 2023 Correction to Technical Specifications Page 3.3-73 in Amendment No. 265 PLA-8076, Unit 2 - 21st Refueling Outage Owner'S Activity Report (PLA-8076)2023-07-20020 July 2023 Unit 2 - 21st Refueling Outage Owner'S Activity Report (PLA-8076) ML23201A0152023-07-20020 July 2023 Operator Licensing Examination Approval ML23200A1012023-07-19019 July 2023 Notification of Conduct of a Fire Protection Team Inspection ML23193A0062023-07-12012 July 2023 Requalification Program Inspection PLA-8078, Submittal of Unit 2 Cycle 22 Core Operating Limits Report, Revision 1, PLA-80782023-07-0505 July 2023 Submittal of Unit 2 Cycle 22 Core Operating Limits Report, Revision 1, PLA-8078 ML23163A1012023-06-12012 June 2023 10 CFR 50.46 Annual Report (Pla 8065) PLA-8054, Proposed Amendment to Licenses NPF-14 and NPF-22: Remove Control Rod Operability Separation Criteria and Replace Reference to Banked Position Withdrawal Sequence with the Analyzed Rod Position Sequence2023-06-0808 June 2023 Proposed Amendment to Licenses NPF-14 and NPF-22: Remove Control Rod Operability Separation Criteria and Replace Reference to Banked Position Withdrawal Sequence with the Analyzed Rod Position Sequence IR 05000387/20234012023-06-0707 June 2023 Security Baseline Inspection Report 05000387/2023401 and 05000388/2023401 PLA-8073, Proposed Relief Request for the Fifth 10-Year Inservice Inspection Interval2023-06-0101 June 2023 Proposed Relief Request for the Fifth 10-Year Inservice Inspection Interval PLA-8064, Response to NRC Regulatory Issue Summary 2023-01 (PLA-8064)2023-05-17017 May 2023 Response to NRC Regulatory Issue Summary 2023-01 (PLA-8064) ML23132A3212023-05-17017 May 2023 Associated Independent Spent Fuel Storage Installation - Issuance of Amendment Nos. 285 and 269 Related to Order Approving Transfer of Licenses PLA-8067, Notification of Completion of Emergence from Bankruptcy (PLA-8067)2023-05-17017 May 2023 Notification of Completion of Emergence from Bankruptcy (PLA-8067) IR 05000387/20230012023-05-12012 May 2023 Integrated Inspection Report 05000387/2023001 and 05000388/2023001 PLA-8066, Notification of Planned Closing Date and Information Identified in March 30, 2023 Order, PLA-80662023-05-0808 May 2023 Notification of Planned Closing Date and Information Identified in March 30, 2023 Order, PLA-8066 PLA-8053, Radiation Exposure Information and Reporting System2023-04-27027 April 2023 Radiation Exposure Information and Reporting System PLA-8058, Annual Radiological Environmental Operating Report (PLA-8058)2023-04-26026 April 2023 Annual Radiological Environmental Operating Report (PLA-8058) PLA-8041, Radioactive Effluent Release Report and Offsite Dose Calculation Manual (PLA-8041)2023-04-25025 April 2023 Radioactive Effluent Release Report and Offsite Dose Calculation Manual (PLA-8041) PLA-8047, 2022 Annual Environmental Operating Report (Nonradiological), PLA-80472023-04-19019 April 2023 2022 Annual Environmental Operating Report (Nonradiological), PLA-8047 PLA-8062, Supplement to Relief Request 4RR-10 Relief from Code Seal Weld Requirement for Valve 252F007B, PLA-80622023-04-11011 April 2023 Supplement to Relief Request 4RR-10 Relief from Code Seal Weld Requirement for Valve 252F007B, PLA-8062 PLA-8061, Relief Request 4RR-10 Relief from Code Seal Weld Requirement for Valve 25F007B, PLA-80612023-04-10010 April 2023 Relief Request 4RR-10 Relief from Code Seal Weld Requirement for Valve 25F007B, PLA-8061 ML23090A2302023-03-31031 March 2023 NRC Decommissioning Funding Status Report PLA-8049 PLA-8060, Submittal of Unit 2 Cycle 22 Core Operating Limits Report (PLA-8060)2023-03-30030 March 2023 Submittal of Unit 2 Cycle 22 Core Operating Limits Report (PLA-8060) ML23095A0572023-03-29029 March 2023 NRC Decommissioning Funding Status Report December 31, 2022 PLA-8057, Application for Order Approving Indirect Transfer of Control of Licenses and Approving Conforming License Amendments- Supplemental Information, PLA-80572023-03-15015 March 2023 Application for Order Approving Indirect Transfer of Control of Licenses and Approving Conforming License Amendments- Supplemental Information, PLA-8057 ML23065A1962023-03-0202 March 2023 EN 56387 Paragon - Part 21 Report Re Defect Identified in Automatic Transfer Switch Pn: NLI-ATS480A400X1 IR 05000387/20220062023-03-0101 March 2023 Annual Assessment Letter for Susquehanna Steam Electric Station, Units 1 and 2 (Reports 05000387/2022006 and 05000388/2022006) PLA-8052, (Sses), Proof of Financial Protection and Guarantee of Payment of Deferred Premiums2023-02-13013 February 2023 (Sses), Proof of Financial Protection and Guarantee of Payment of Deferred Premiums IR 05000387/20220042023-02-0808 February 2023 Integrated Inspection Report 05000387/2022004 and 05000388/2022004 ML23010A0882023-01-15015 January 2023 Summary of Regulatory Audit in Support of License Amendment Request to Revise Control Rod Technical Specifications 2024-02-07
[Table view] |
Text
Baldor Electric Company
,,I ,I=,P. 0. Box 250, 4349 Avery Drive
..................... _Flowery Branch, GA 30542 USA A MEMBER OF THE ABB GROUP Tel 678.947.7350 January 20, 2015 To: Document Control Desk United States Nuclear Regulatory Commission Washington, DC 20555
Dear Sir or Madam:
In accordance with Title 10, Code of Federal Regulations, Part 21, Baldor Electric is making Written and Final Notification as required by 10CFR21.21 for event #50703.
A. Name and address of the individual informing the NRC.
James Thigpen Quality Assurance Manager Baldor Electric/Gainesville Motor Plant 4349 Avery Drive Flowery Branch, Georgia 30506 B. Identification of Basic Component being Supplied.
AC Motor C. Name of firm supplying basic component.
Baldor Electric/Gainesville Motor Plant 4349 Avery Drive Flowery Branch, Georgia 30542 D. Nature of the defect, deviation, or failure to comply.
Subject:
Nuclear Nonconformance Event Number 50703 This is a reportable 10CFR21 notification because we believe it is possible that the 9 identified lE motors shipped by Baldor Electric, contain a design where the buildup of tolerances between the shaft journal, bearing cap and bracket could potentially allow the bearing cap to cock in the bracket causing a 0.001" interference fit on one side of the cap in a worst case scenario.
..... Baldor Electric Company 9A LID O0 P. 0. Box 250, 4349 Avery Drive Flowery Branch, GA 30542 USA A MEMBER OF THE ABB GROUP Tel 678.947.7350 STEPS TAKEN TO PREVENT FUTURE OCCURRENCES A review was completed by design engineering to determine this design issue has only occurred for the Baldor Specification ID #'s associated with Howden Part Number 600287-28R, *of which Baldor has only shipped the 10 motors identified below of which 9 remain in the customers possession. Baldor has the remaining motor in our possession and it is being replaced with one using the revised design developed as our corrective action response.
Baldor has notified Howden North America Inc. Company's Quality Assurance of our findings. They have in turn contacted their customer, PPL Susquehanna, and determined all 9 motors in their possession have been in service for over 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> with no problems.
The design of the shaft/bearing cap radial clearance has been increased to correct the potential safety issue. Motor Bill of materials for the effected Baldor designs have been revised to call for bearing cap part number 603295-74B on any future shipment.
CONCLUSION The one motor that failed during initial customer testing is in process of being repaired or replaced with the new designed bearing cap.
The revision of the design for Spec. ID's B505968, B656588, B782464, B952117 and B1092454 has been implemented and verified to be correct.
The end user PPL Susquehanna has confirmed to Howden North America Inc. that the remaining 9 motors have been in service for over 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> with no problems, and therefore do not require any alteration to the bearing cap in order to perform their intended use safely.
D. The Discovery Date.
October 29, 2014.
Baldor Electric Company P. 0. Box 250, 4349 Avery Drive Flowery Branch, GA 30542 USA A MEMBER OF THE ABB GROUP Tel 678.947.7350 E. The Quantity and Location of Motors Affected.
PART/COMPONENT NUMBER:
Customer Customer Motor Serial # End User / Location Status Name PO #
Howden 39679 B505968-010 T1 PPL Susquehanna Contacted North 44617 B656588-010 T1 PPL Susquehanna Todd.Gunvalson@Ho America Inc. B656588-010 T1 PPL Susquehanna wden.com and 48105 B782464-010 T1 PPL Susquehanna confirmed all 9 motors B782464-010 T2 PPL Susquehanna have been running in 012747 LIl 1 B952117-010 T1 PPL Susquehanna service for over 24 B952117-010 T2 PPL Susquehanna hours with no B952117-010 T3 PPL Susquehanna problems.
022355 B1092454-010 T1 PPL Susquehanna B1092454-010 T2 Baldor Electric Motor will ship to Howden with new design, new serial number F. The Corrective Action which has been completed.
Baldor has notified Howden North America's Quality Assurance
.of our findings on the motor returned to Baldor for 10CFR21 evaluation. A review was completed by design engineering to determine this failure was due to a collection of events that occurred simultaneously, and if were to happen again, would result in failure within hours of the motor being powered.
Baldor's solution to this worst case scenario is to open the clearances of the shaft bore in the cap up from a 0.008" radial clearance by design, to the maximum 0.012" radial clearance for 1.5" fit length for UL XP standards. This would eliminate any possibility of a rub while the cap is mounted in the cap journal of the bracket. All motors that have been in service for more than 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> do not require alteration of the bearing cap. Any others that have not been placed into service should have the opposite drive end bearing cap replaced to ensure this failure will not occur. The corrective action CAR-00451 Howden: Request for 10CFR21 Evaluation for bearing lockdown was completed and closed on 12/23/14.
Baldor initiated corrective action per Baldor CAR-00451 on December 15, 2014 which was completed and received final approval by James Thigpen QA manager Baldor. Final verification of actions will be and verified for effectiveness by 3/23/2015.
Baldor Electric Company P. 0. Box 250, 4349 Avery Drive Flowery Branch, GA 30542 USA Tel 678.947.7350 A MEMBER OF THE ABB GROUP G. Other Information.
All motors that have been in service for more than 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> do not require alteration of the bearing cap. Any others that have not been placed into service should have the opposite drive end bearing cap replaced with a newly designed cap (603295-74B) to ensure this failure could not occur.
Sincerely, mre~s Tge~n Quality Assurance Manager, Gainesville Motor Plant Baldor Electric Co.